A study was carried out by the cancer registrar regarding the age at initial dia
ID: 69581 • Letter: A
Question
A study was carried out by the cancer registrar regarding the age at initial diagnosis of patients diagnosed with lung cancer. A total of 80 cases were recorded as follows: Ages: 85 83 82 81 80 80 78 76 75 75 74 74 73 73 72 72 72 71 71 70 70 70 70 69 68 68 67 67 67 67 66 66 66 66 66 65 65 65 64 64 63 63 63 62 62 61 61 61 60 60 59 59 59 58 58 57 57 57 56 56 55 55 53 53 52 51 49 49 48 47 46 45 45 44 42 40 39 38 35 29 Calculate: a. Range b. From an ungrouped (intervalsize1) distribution, calculate: (1) mean (2) median (3) mode (4) variance (5) standard deviation
Explanation / Answer
Calculation :
a) Population size:80
Lowest value: 29
Highest value: 85
Range: 56
1) Mean = Sum/N
4960/80 = 62
Mean = 62
2)Median: 63.5
Because the numeric value separating the higher half of a sample data set.
3) Mode= 66
because Mode is the value or values in the data set that occur most frequently.
4)Variance:139.725
Population size:80
Mean (): 62
Variance (2): 139.725
5) Population size:80
Mean (): 62
Standard deviation (): 11.820532982907
3) Mode= 66
because Mode is the value or values in the data set that occur most frequently.
4)Variance:139.725
Population size:80
Mean (): 62
Variance (2): 139.725
5) Population size:80
Mean (): 62
Standard deviation (): 11.820532982907
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